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Q Patented Ian. 17, vI899. H. HERRAN.

SNOW PLOW. Ap lication filed July .16, 1898.)

' v 4 2 SheetsSheat l.

No. 6|7,830. Patented Jan. i7 I899.

H. HERRAN.

SNOW PLOW.

(Application filed July 16, 1898.) Mo el.) 2 Sheets-sheet 2.

UNITED "STATE PATENT OFFICE.

IIEINRIOI-I HERRAN, or .KLADRUB, AUSTRIA-HUNGARY.

SNOW- PLOW.

i v l SPECIFICATION formingpart of Letters Patent No. 617,830, datedJanuary 17, 1899.

Application filed July 16, 1898. Serial No. 686,161. (No model.)

To all whom it may concern:

Be it known that I, HEINRICH IIERRAN, a citizen of the Empire ofAustria-Hungary, residing at Kladrub, Bohemia, Austria-Hungary, haveinvented certain new and useful Improvements in Snow-Flows, of which thefollowing is a specification.

The present invention relates to that class of vehicles designed toclear the snow from streets, roads, avenues,'and the like; and thespecial object thereof is to provide a snow plow of very simple butsubstantial construction and which, with a moderate amount of motive.power, readily throws the snow to each side of the road.

I The wedge-shaped sledges or snow-plows heretofore employed require agreat expense. of motive power for their operation, resulti ng from theaccumulation of the snow at the fore part of the plow, where it iscompressedto such an extent that the plowcan only advance with thegreatest difficulty. This in-' convenience is removed-with the snow-plowforming the object of the present invention by driving the snow to thetwo sides of the road by means of two screws or conveyers acting inopposite directions on a common rotating shaft, as more fully andclearly pointed out and claimed hereinafter.

The accompanying drawings show one embodiment of my invention, inwhich-- Figure 1 is a front View of a snow-plow. Fig. 2 is a verticalside section of the machine on line x y of Fig. 1. Fig. 8 is a planview, and Fig. 4 is a side view, of a snow-plow of the same classarranged to be actuated by hand.

Similar letters refer to similar parts throughout all the figures.

A is the frame of the machine. B and B are the wheels. 0 is thescrew-shaft. D and D are screws or conveyers. E is the plow. Hdesignates the pinion driving the conveyers. I is a gear-wheel actuatingthe pinion II through the agency of the chain L. J indicates, the motor.K is a semicylindrical casing. M are cranks. N is a crank-shaft carryingthe wheel I, and O is a handle.

The snow-plow is composed of the frame A, supported by the wheels B B,and the beams a of which carry at their ends the rotating shaft 0 of thescrews or convo yers D D, preferably constructed of sheet i'ron andacting in opposite directions, Figs. 1 and 3. The screws or conveyers DD have their rear part covered by a semicylindrical casing K, secured tothe cross bar b of the frame A, and the bars-af'of this latter carry adeflecting wedgeorplow E of reduced width between the two screws orconveyers, the said wedge or plow being adapted to deflect thev snow andto protect the gear-wheel H, mounted on the shaft 0 between the supportsa and ac.- tuated by means of a chain L by the wheel I, operated eitherby a motor J, secured to the frame A in a suitable manner, Figs. 1, 2,and 3, or by hand by means of any movement transmission, Fig. 4. 4

.The screws'oreonveyersD D", the casing K, and the deflector E are at ashort distance from the ground, so as to allow the said con-' veyers toturn freely and to avoid wearing of I the parts by friction upontheground.

The snow-plow shown in Fig. 4 is operated I by hand and only diifersfrom thepreceding one in the shape of theframe A and the ar rangementfor operating the wheel I. The support of this machine is formed by theframe A, provided with the wheels B B and the casing K, this latterbeing secured to the arched iron parts d, at'the ends of which thewheels B are arranged, Fig. 5. The shaft 0 of the screws or conveyers issupported by the horizontal parts a of the frame A and rotated'by thetoothed pinion H, ac-- tuated through the agency of the chain L by thegear-wheel I, operated by means of the cranks M, secured. to the shaft Nof wheel I. The upper end of the frame A is provided with a handle 0 todrive and lead the ma-' chine, Fig. 5.

This machine operates as follows: The

screws or conveyers D D'- are rotated when 1. In a snow-plow, thecombination'of a ZOO frame supported on wheels; a motor andpower-transmission means for actuating the conveyers; two screws orconveyers acting in opposite directions on a common rotating shaft toconvey the snow, a deflector arranged at the fore part of the machine,between the two conveycrs to deflect the snow to the right and left anda semicylindrical casing placed behind the conveyers to prevent the snowfrom adhering to the latter and to move it sidewise, to be thrown on thesides of the machine, substantially as described and shown.

2. In a snow-plow the combination of a frame supported on wheels, twosnow-conveyers acting 1n opposite directions and arranged on a commonrotating shaft; a snowdeflector arranged between thetwo conveyors at thefore part of the machine; 2 semicyllndrical casing placed behind theconveyors, and cranks and means to transmit the movement for actuatingthe conveyers by hand, substantially as described and shown.

HEINRICH IIERRAN. \Vitnesses:

J AS. TROJAN, KAREL KULICH.

